When planning the loading or discharging of a VLCC (100,000 DWT+) what is the most important consideration?()
A、Draft and trim
B、Limits of the bending moments
C、Rate of discharging
D、Rate of loading
A、Draft and trim
B、Limits of the bending moments
C、Rate of discharging
D、Rate of loading
A、to minimize plan regression due to the use of a new optimizer version B、to completely avoid the use of new plans generated by a new optimizer version C、to prevent plan capturing when the SQL statement is executed after the database upgrade D、to keep the plan in the plan history so that it can be used when the older version of the optimizer is used
A、before the stowage plan is made B、when the stowage plan is made C、after the stowage plan is made D、before loading
A、The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans. B、The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan. C、The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan. D、The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.
A、The tuned plan is not added to the SQL plan baseline. B、The tuned plan is added to the fixed SQL plan baseline as a fixed plan. C、The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan. D、The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.
A、The tuned plan is not added to the SQL plan baseline. B、The tuned plan is added to the fixed SQL plan baseline as a fixed plan. C、The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan. D、The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.
A、It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans. B、The optimizer always uses the fixed plan, if the fixed plan exists in the plan baseline. C、It adds new, bettor plans automatically as fixed plans to the baseline. D、The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans. E、The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated.
A、A.cooling water of the cooling system B、B.fuel of the FO system C、C.LO of the LO system D、D.cooling water of the cooling system and LO of the LO system
A、The optimizer adds the new plan to the plan history. B、The optimizer selects the new plan for the execution of the SQL statement. C、The optimizer adds the new plan to the SQL plan baseline as an accepted plan. D、The optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state. E、The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.
A、A. The plans can be manually loaded to the SQL plan baseline. B、B. The plans in the SQL plan baseline are verified and accepted plans. C、C. The plans generated for every SQL statement are stored in the SQL plan baseline by default. D、D. The plan baselines are stored temporarily in the memory as long as the database instance is running. E、E. For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.
A、stop the LO pump, SW pump, FW pump B、stop the priming FO transfer pump C、engage the turning gear D、open the scavenge air belts drain valve and cover the turbocharger silencer with the dustproof cover